EEVblog

Dave repairs a Xerox C2201 color photocopier found in the dumpster.
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[@jeremycole2036]

Flip the damn switch already!

[@blackbird8632]

Omg yes, was ready to fly to the underside of the world and press it myself.

[@robbyxp1]

Yep, 1 min over that

[@radekwysocki7875]

I was waiting for a nuclear blast edit XD

[@andymouse]

fuck me, I'm glad its not just me who nearly went mad

[@igotes]

"I just thought I'd make a quick video" ... (40 minute video) ... "I won't go into any detail here" .. (full detail follows) .. He does like to talk!

[@merlinmagnus873]

Copier tech here, nice find. The thing with the battery is the memory for the machine settings, counter data, calibration, etc. Don't take the battery out! Those old resistive touch screens die all the time, replaced plenty. New ones are cap screens. As for the hard drive, the copies are not stored to the drive. They are stored in ram. The drive is for storing the e mail address book and repeat forms you print all the time. Those are always blank and never contain anything worthwhile. Most copier hard drives in the last 10 years are encrypted anyway.

[@rlarsen76]

The loose cable to the "Paper clip thingy" is for a NFC reader. We have a similar one at work we use with employee ID cards. Means you don't have to log on with your credentials to have scans sent to your email etc.

[@EEVblog]

Ah, makes sense, thanks.

[@AraCarrano]

Sweet a photocopier that charges your cell phone.

[@EEVblog]

Ara Carrano - LOL I'll pay that

[@IIGrayfoxII]

@Ara You're thinking of Qi Charging

[@Rintaro88]

its a blanking cover if there is no fax kit and speed dial installed on the machine in aus. all card readers are supposed to be installed externally here on this model. the cable is for the speed dial panel

[@p_mouse8676]

Maybe they should move the dumpster location to your lab? Saves the effort lol

[@Wolfhound.]

ya put a sign down there that says that his place is the electronics drop off

[@derkeksinator17]

You don't want the other companies seeing you as their advanced tech support though, that would be rather annoying.

[@RemcoStoutjesdijk]

I wonder if Dave doesn't already have that reputation when they see him shoving the umpteenth photocopier through the halls :)

[@saddle1940]

The dumpster room needs a webcam that Dave can monitor.

[@bill605able]

perhaps we should 'chip' dave

[@brotschuh]

I wonder if your neighbors watch your videos. maybe they sit in their office and discuss: Let's put this in the dumpster and see if he can fix it 😂

[@stevegood3224]

This video gave me flashbacks. I spent 37 years at Xerox servicing printers before I retired a couple years ago. We did very little component level repair in the field. We would have replaced the touch screen and moved on. Time was more expensive than parts. If we did not have a touchscreen in the truck then we might try to repair the board. Most of these parts were returned and repaired at dedicated workstations. This is a smaller printer but the large printers could pay thousands of dollars a year on service contracts. Those customers wanted the machine back up and running quickly. I have enjoyed your videos for years but of course, this one stood out to me. Thanks for the education you provide.

[@gavincurtis]

I had a similar VGA LCD display like this in a piece of similar equipment have the exact same washed out contrast issue and ultimately viewable from only one angle and barely at that. It was from bad electrolytics on the driver board that are part of the LCD display. Specifically, those crappy SMD aluminum can ones. Easy fix in my circumstance.

[@denisohbrien]

The Dollar Guy thankyou for this post , I have an old snap-on modis scanner I use as a 4 channel scope(it's shit but perfectly good for automotive stuff) pulled it out to monitor an intermittent fault, it must be getting on 6 years old now, and the screens getting awefull. about time I took it apart :)

[@douro20]

I haven't heard of a MODIS in quite a while. I believe Drew Technologies helped develop the software for that tool, since it was Snap-on's first Windows CE based device. Too bad they're not quite as good as Drew's offering.

[@GadgetUK164]

LOL - I continue to be amazed by the stuff that people throw away in your building!!! There are some crazy companies there for sure!

[@hgbugalou]

GadgetUK164 - Retro Gaming Repairs & Mods I work for a big company. Honestly in cases like this its cheaper to throw these things out than it is to try and fix or sell them because you have to pay someone in either case, plus most ewaste companies that pay by the pound aren't going to take a single copier. They want stuff by the trailer full. If the business doesn't have the space to store it, then tossing it is just easier. While 5 to 10k this unit probably costs seems like a lot to us, its really nothing to a business.

[@robertbackhaus8911]

"Proper" repair of this would be replacing the display module, or just the digitizer/front glass. This one is probably old enough for the part to no longer be available. A tech should not do the type of repair that Dave did, because they can't be sure that the contact won't come unstuck as soon as they are out the door.

[@CuteLittleNeko]

I picked up a PC off the side of the road once and it had windows Xp and a 200GB hard drive, and was full of Star Trek and Stargate episodes. lol

[@tbbw]

Michael O, also keep in mind the down time where you cannot use the printer if you repair it, ordering a new one to keep things rolling is more beneficial to the company.

Yeah. With lots of money to buy new things if there is even some minor fault, and with producing lots of e-wastes then :-O

[@electronicsNmore]

So much fun dumpster diving. Great find!

[@RPRosen-ki2fk]

Dave's dumpster is like your ... GoodWill Store.

[@cmuller1441]

Another victory for "The Art of Electronics" !

[@MartynDavies]

3rd edition too

[@stevetobias4890]

Im about to buy one, I caught that myself, must be worth it if Dave has it on his bench

[@TheVirindi]

Next up: dumpster diving solid gold bars. The crazy things people throw away these days! :D

[@andruloni]

"The value wasn't rising fast enough, so we switched to crypto"

[@lothianmcadam1]

(3:39) "Let's not muck around. Let's let straight into it", says Dave after mucking around and not getting straight into it for four minutes...

[@EduardoWalcacer]

Holy crap man, what a find and easily fixed! Well done

[@jeronimus77]

Xerox tech here. The hard drive is used for the spool file, store scans, and secure printing (you have to enter a pin to release the document) Copy jobs are not stored and the drive is encrypted. The 'real time clock' is a software module. It stores the page count and some Nvm settings, you can compare it with the bios chip of a pc.

[@lancemenke2728]

Had to go touch screen got a sunburn and your procedure fixed it. Haa not any tech currently working on them never would have done other than board swap and the part would have made the repair too expensive GOOD NICE JOB!!.

[@james1seattle]

And now...back to the dumpster. Really enjoy your videos!

[@Spector_NS5_RD]

Could watch these style of repair videos all day. Thanks Dave!

[@coondogtheman]

Dave you should poke around that hard drive, try to hook it to a PC and see what's on it.

[@ayourk1]

The OS on these copiers is typically Linux based. And they are usually using a special type of drive encryption.

[@202Electrics]

Tried That on a drive out of a copier Like this. In no way readable.. But.. There was an interesting self sustaining encryption board between the hard drive and the main board. Didnt manage to get it work.. Yet.

[@cyb3rk3v]

Plenty of office butt cheeks I reckon

[@yevoidstar]

Interesting if it stores everything printed on that drive...

[@coondogtheman]

I'm not sure why. It could store it temporarily like for sending over a network. That's why these copiers are a gold mine to identity thieves. If I tore one of these down I'd use the parts for something and then reformat that drive and then either use it as extra storage or try to put an OS on it and maybe use the copier hardware to make some kind of Frankenstein PC.

[@Zoli1972s]

This massively cool video worked for me when trying to fix the same exact touch issue on a Xerox Workcentre 7345. A big thank you to EEVBlog for making this video. As far as i was able to see, the 7345 looks exactly like this machine on the interior.

[@murph82]

I work with Xerox devices and this is branded a WorkCentre 7435 in Europe. Touchscreen issues were one of the most common faults. You've got the additional PS kit installed in that one, the chip labeled R1 so you're good to print from Mac's as well as PCs :).

[@whuzzzup]

Can a Mac not just print with PostScript?

[@arfyness]

whuzzzup - Yes, but without the PS (PostScript) kit on the printer, it can only receive PCL jobs.

[@Rintaro88]

This guy knows

[@apbosh1]

Never seen a chip labeled R1

[@murph82]

apbosh1 mail @17:10 second chip up from the bottom of your screen, white label on it.

[@KingNast]

I've replaced so many control panels on these things from people getting aggravated and punching them

[@EEVblog]

LoL office space

[@KingNast]

EEVblog PC Load Letter? What the fuck does that mean?

[@emmettturner9452]

What was the typical bill?

[@KingNast]

Emmett Turner The panels were around $600 USD for some models, but that was in the mid 90s, and just a dot matrix LCD display. They were all leased with service contracts though, so they rarely paid anything.

[@macmcseboy]

kzbin.info/www/bejne/hGrapJ2opLufq5o

[@lunaz4697]

Glad the 4D Systems screen is coming in handy years later after sending it in.

[@junkmail4613]

Just looked, that's an $8000 to $10000 copier..... Wow what a find!!!

[@sbalogh53]

Colour copier with almost full cartridges. Wonderful find. The old fault report is probably because they stopped using it a year ago and had it in storage for a while before someone needed the space and tossed it out. The rollers might need some maintenance or cleaning.

[@jrhollingsworth1075]

As a past copier technician that was a masterful piece of troubleshooting you never cease to amaze me. Component-level work is something of a lost art anymore all they do now is parts swap.

[@OH3WE]

I've been around with those Xeroxes for decades. In the beginning we repaired those front panels but later we ordered just the screen from China or whatever. In summer time humidity gets in between the surfaces and you have to re-calibrate every week unless you replace the screen eventually.

[@danielpetersen2147]

I used to work on a different brand of photocopier which used those Sharp touch panels, and around 2010 (I think) we had to replace tons of them for free because of an inherent fault. I think the service bulletin said it was the adhesive at fault, as you discovered.

[@pipingdogtooth]

Thank you. Very illuminating:)

[@brumbymg]

I love your dumpster room.

[@robbieaussievic]

....... I respect & admire Dave primarily because of his Couch Feet collection skills.

[@EEVblog]

Bow down before my couch feet

[@kjamison5951]

15:40 that is likely to be a cable to connect a smart card reader for auditing. If you have a lot of departments or individuals with access to the copier, they could each be given a smart card to use rather than having to enter a PIN number manually. Having worked with copiers for over 20 years, all kinds of ideas were pitched to make it easier to budget copier costs.

[@sangitamukherjee6324]

Thank you so much sir.

[@GadgetBoy]

I've worked on the manufacture side. The different sizes are to idiotproof the construction, so that the buttons only have one place to go. You'll see a really good example of that idiot-proofing if you disassemble a wiimote.

[@lordozzer9172]

the Buttons are probably also mounted on other printer models from the same company so its like an internal "of the shelf" component where no extra molding had to be created, just increased production volume of the same part

[@derofromdown-under2832]

Geeze Davo, you copped a real score on that copier, Well Done mate... Great presentation and great trouble-shooting proceedure... 10/10

[@davidkgame]

That cable underneath the paperclip holder is for a prox card reader for use with print control software like Uniflow

[@dattebenforcer]

I remember using these at work. It's quite a puzzle to figure out lol.

[@ThinkinThoed]

Hey, I network Xerox for a living... :) (only a few minutes into the video) if they don't have Windows 10 drivers, just use Windows 7 drivers, they still function in Windows 10. Also if push comes to shove, the "Global Print Driver" would suffice as well! EDIT: The cable/cubby hole around 15:45 are often for RFID/CAC/smart readers for authentication with AD (active directory) for example. We might have some old readers laying around the office... :)

[@EEVblog]

I tried windows 10 and Ethernet and it works perfectly. Printouts on my Twitter

[@tomvleeuwen]

Anything interesting on the harddrive? I guess you don't want to publish someone else's documents on KZbin, but I am really interested on how much you could find and maybe just tell us.

[@EEVblog]

It's not a format that's (easily?) readable on a Windows PC.

[@SirGeraltMC]

what about a linux live drive? like ubuntu live usb?

[@Dratchev241]

id bet linux would read it.

[@alexjepson1691]

You could try using PhotoRec.

[@anlumo1]

The hard drive is used as a buffer between scanning and printing. Also used for the printer queue on the device. It could use some small flash storage, but that's probably more expensive (especially in 2008, when this device was sold).

[@UpLateGeek]

We've had an e-waste skip bin at work for the last few weeks. It's the largest size available and it's almost full to the brim now! Managed to pick up a few things, but I've missed so many more because of all the rain we've had lately. Every time I go out to drop stuff off, I see something that I totally would've taken home if not for the rain. I did check a few pieces of gear, but even only a couple of days exposed to the elements caused corrosion, and some of the other gear has been in the skip for weeks. ):

[@someomeyouknow8221]

upon getting to the first 20 seconds of the video "it actaully looks in uhhhh, pretty good shape" , 100% knew he was going to say nic, awesome dude, that made my day,

[@percybysshe1796]

Know this problem well from one of the brands of copiers I deal with. The conductive adhesive they use seems to be the main cause of this problem. Also found they don't like the cold, this has killed many touchscreens. Later touchscreens seem to be more reliable so I assume they now use a better adhesive.

[@mauritsrietveld]

Great job. Looks like you are the recycle KING!

[@JimGriffOne]

So it turned out not to be a butt photocopying failure. Interesting!

[@SidneyCritic]

Successful repairs are the best. I would've put packing in there to constantly press on the connector.

[@sandy1653]

I've seen things like RFID modules and MSR badge readers in that spot before to do authenticated printing and print-on-release in those spots before. Which is also what those hard drives are normally used for.

[@SeppyYT]

Damn I wish I were living near Dave. I were rich with his knowledge and luck to find such things.

[@dosgos]

These were very popular in Japan. We used as printer and copier (and scanner to files). It was very fast and very reliable. Ultra well designed. Colors varied a bit over thousands of copies but still great for professional presentations.

[@johnkeates9434]

That cable that goes into the pocket behind the paper clip thing is for RFID/NFC interfaces, and in some cases USB connectors to the outside. It's used for user identification and printing files off of USB drives. Not sure if you could scan-to-USB.

[@NorfolkTears]

My appreciation of photocopiers has risen :P

[@MrNadirzenith]

18:44 is to secure the power cable into the copier. It takes a screw. I've had so many service calls because someone moved the copier and they didn't plug it all the way into the AC inlet

[@4IN14094]

I used one if these back in my days as a lab tech at a one hour photo store, they are build to last a very long time.

[@rpsproject5349]

That was great, even the Art of Electronics came in handy.

[@tomtecsolutions]

The void under the Paperclip area is for a RFID card reader to be installed underneath for card authentication.

[@YeOldeSpellbooke]

The level of different details in the design that Dave points out makes these videos so satisfying :) Edit: Winner chicken dinner... I think i heard that in another context... Hmmm... :D

[@casperhito]

Björn Camitz See ya around Sanhok. Bring a rifle ;)

[@__qqq__]

Back in school, I've spent a month as an apprentice in a copier repair shop. And let me tell you, I don't miss them. I still have a big scar on my finger from dropping one of those suckers.

[@qlum]

Reminds me of a copier we have at work, we got it from some auction however we never got the admin key to get into settings. Factory reset did not help and so we have a copier that can do just that copy and nothing else.

[@ayourk1]

I've done repairs on similar Xerox machines. That random bracket you mentioned near the end of the video is probably to secure the power cord. You may want to check Xerox's web site to see if there is a firmware update. Some of these older machines didn't allow printing an error log on the screen and required paper to get that info. I know there are "secret" keystroke commands for these printers to calibrate the touch screen and this varies from model to model. Some require holding certain buttons while powering the machine on, while others involve getting to a special menu. By the way the screen flashed, I was worried it was one of the 2 power supply boards was weak. Some of these copier models were notorious for slow response times with the touch screen.

[@austinvickymoore3656]

Love it haha greet videos! Learning tons from you!

[@saddle1940]

I find you have to heat and press to make a good joint with those tab bonds.The glue is saturated with silver dots (or some other metal) that get squeezed between the top and bottom to make a connection but doesn't short side to side. Hate them on LCD TVs, they've got the triple 2's. Too fine, too many and to hard to fix long term.

[@74LS_NE555]

very nice now you can print on your transparencies for copper transfer or uv exposure !!!!

[@charlesdeens8927]

Nice! Every time I go through my neighbors garbage, all I ever find is empty food boxes, and discarded pill bottles.

[@WacKEDmaN]

holy damn! i gotta find me a dumpster! the things people throw away... :/

[@techalyzer]

I want to live in a place like that. Here, they wouldn't trash it if it was half destroyed, that would definitely be the first out of a very long list of repairs until it would finally get trashed. it's the other way around, most businesses use equipment that belongs in the trash bin. :)

[@Baxtexx]

You should look at the memory, see if you find any old documents. Read an article about that for a while ago.

[@stuartmcconnachie]

Different mouldings so they cannot be assembled incorrectly. Costs very little in significant production quantities and saves a whole load of cost rectifying later if it’s assembled wrong....

[@emmettturner9452]

Stuart McConnachie there are other ways to do that with the same mold, like keyed inserts

[@aleksin92]

Lachlan Jansen it would be bit awkward if some machines had red start buttons and green stop buttons while others had it right way

[@emmettturner9452]

aleksin92 Yeah, and there may Ben be color coded prompts or instructions. There are possibly even accessibility standard enshrined in law in some regions.

[@saddle1940]

How many would they be making of that one model?

[@rabidbigdog]

Those panels were used by Fuji Xerox on multiple devices for about 8 years Dave.

[@cyb3rk3v]

Classic repair. No wackers!

[@MalagasOnFire]

This works good also for the LCD's on the older Game Boy's but this is a huge dumpster finding. Now you will print / scan schematics with style.

[@excession777]

Looks like a significant addition to any office :).

[@peterg.8245]

Classic Eevblog... this is what I subscribe for

[@felenov]

What is on the hard drive. I once found a similar (but newer copy machine) and the disk was full of bitmaps. It was a good time looking around the disk

[@davidsbastelbude3326]

At 15:50 that is probably space for an optional RFID-Card reader so users have to identify themselves with their company id. Some companies use this so they can track down the individual paper use or restrict certain functionalities like faxing stuff for some users.

[@5argetech56]

Hey Dave I went to the Christian Women's thrift store the other day. And saw this Antec external hard drive enclosure for $9.95. Got it home opened it up and there was a 500 gigabyte hard drive inside that was in perfect condition total score..

[@NcGamingCreations]

honestly differently shaped buttons can be really intuitive. I think it's important for both marketing and engineers to work together to make the best product for consumers while keeping manufacturing costs low enough.

[@jopjopjop]

This made me happy!

[@dj1NM3]

I'm pretty sure that the different coloured buttons are slightly different shapes (or sizes) so that they cannot be put in the wrong hole during assembly.

[@ProcioneDeConti]

I used to work in a copy and print center, and don't worry, a lot of the time, these Xerox machines are factory configured to "overwrite" the HDD either per copy (after spitting out the final copy/page) or per week, month, or year, so more often than not, the files aren't saved (and if they are, they're fairly heavily encrypted, if configured).. As far as I know, unless the device is equipped with a Firey controller (I think only the newer models are) recovery from these devices is very hard to impossible. The device should run a modified version of Linux.

[@EEVblog]

Interesting thanks

[@merlinmagnus873]

Yeah, the Fierys store the jobs as PDFs in a zip style archive. You can just copy them right off. Most copiers on the other hand erase and overwrite anything temporarily stored to the drive like scan data. The drives are encrypted by default also for good measure.

[@murph82]

Exactly, Xerox can it image overwrite. The new devices come with immediate image overwrite so the job is overwritten with random 1s n 0s after the jobs is finished.

[@afloyd4976]

Hopefully the toner can still be bought for this copier. Some places dump copiers when toner stops being made.

[@douro20]

I believe this was one of the first models to use a 7-beam VCSEL laser engine which was developed by Fujifilm.

[@coyote_den]

I'm surprised they just binned that. Aren't they usually on lease? I think that unused cable is for a RFID option. You'd scan your student/company ID card.

[@russellhltn1396]

That cable that went to nowhere was probable for the autotron or other copy control/copy tracking device. In the old days, it was a mechanical counter that had to be inserted to allow the copier to run. The department was billed based on the counter. Today, it's more electronic, but same idea: shared copier but separate billing.

[@jbloodwo]

Russell Hltn as stated in another comment, that is for the contactless card reader. Or NFC. These are used when print and hold is enabled. I have installed the readers on these printers kind of cool to have tap and release printing.

[@WillArtie]

Awesome DJ!!

[@DumahBrazorf]

Maybe you can secure the repair with some hot glue or simply some foam/gum in order to keep that flat cable pressed on the glass.

[@DynV]

That's an amazing find! I hope you sold it and made a profit (only paying yourself for the time it would have taken you to do this without any filming consideration).

[@kruppin]

Wow, lucky bastard :D

[@Fierylad]

Sorry mate Fuji tech here, having a good giggle at your vid that Apeos is a dinosaur compared to the models now.. Those backlit LCD screens were a high faliure point..

[@FLyyyT_]

It has color copy. Nice. Nice detective engineering work as always

[@AngateWier]

I would suspect all of those buttons are created in the same gang mold so it wouldn't matter that they are different. what i does though is allow people with vision impalement associate the color with the task, and it makes sure that they don't get put in the wrong place during assembly and during service if they come out of place.

[@redtails]

the yellow toner goes quicker than the other colours because of all the ID pattern printing :D

[@WhatUpTKHere]

By making the buttons different sizes, it stops the assembly workers putting the wrong pieces in the wrong place. It's poka-yoke techniques in practice.

[@GregMcCarthyUK]

Its sad that people throw everything away nowadays and don't try to repair. I need to move closer to your dumpster!

[@Herby-1620]

I need a dumpster like yours! Given that the last fault was back in 2017, it probably sat in a corner for some time, waiting for the thing to "self repair", then since the replacement was being used, they decided to dump it. Their loss, your gain! Next try to see what was on the SATA drive, maybe secrets of the temple of doom. You never know.

[@ecstazyrm]

Art of electronics a classic book!

[@OH3WE]

The R! SIM you poked at is a Post Script enabler ROM.

[@Dyaxxis]

19:00 I've tried a vast array of methods, which practically all of them work very well, but my preferred method is using a pulse heat unit with a lap flow tool attached to it. By using a wide bar shaped tip along with the appropriate temperature and activation time, I can reattach a wide variety of thermal pressed connectors in a matter of seconds with very little to no damage. The control is good enough to easily rework with very heat sensitive polymers in very tight proximity with each other. This is just one of several uses for a pulse heat unit. Major downsides are pulse heat units, their attachments, and their tips can be very expensive and can require a bit of practice to properly use. Outside of certain work needs, I consider them "overkill." Because most technicians around here don't do this as often, nor do they perform repairs to the strict standards my rework tasks must comply with, a cheap low temp soldering iron tip or even some sort of "clothes iron" will be more than sufficient. I've even taken the heating elements from a broken food bag sealer and modified it to work as well. Just my 2 cents.

[@rikvdmark]

15:40 that's most likely for an optional card reader. I have to login using my access card for the doors at work to be able to use the printer / access my personal print queue

[@bikerchrisukk]

If only our general knowledge was so much better, hardly anything would be thrown away! Great video, really entertaining to watch, keep 'em going!

[@Nerradia]

"The art of electronics"

[@Petertronic]

Awesome repair. You can make copies of Cat Clark's profile and distribute them around Sydney now :)